//
//  WBVisitorView.swift
//  赝品微博
//
//  Created by 刘浩林 on 2016/11/4.
//  Copyright © 2016年 刘浩林. All rights reserved.
//

import UIKit

//访客视图
class WBVisitorView: UIView {


    //注册按钮
     lazy var registerButton: UIButton = UIButton.cz_textButton(
        "注册",
        fontSize: 16,
        normalColor: UIColor.orange,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")

    //登录按钮
     lazy var loginButton: UIButton = UIButton.cz_textButton(
        "登录",
        fontSize: 16,
        normalColor: UIColor.darkGray,
        highlightedColor: UIColor.black,
        backgroundImageName: "common_button_white_disable")


    //访客视图的信息字典
    //[imageName/message]
    //如果是首页 imageName == ""

    var visitorInfo:[String: String]? {
        didSet{
            //1>取字典信息
            guard let imageName = visitorInfo?["imageName"],
                let message = visitorInfo?["message"] else{
                    return
            }

            //2>设置消息
            tipLabel.text = message

            //3>设置图像,首页不需要设置

            if imageName == "" {
                startAnimation()
                return
            }
            
            iconView.image = UIImage(named: imageName)

            //其他控制器的访客视图不需要显示小房子/遮罩视图也不需要
            houseIconView.isHidden = true
            maskIconView.isHidden = true


        }
    }

    //MARK: -构造函数
   override init(frame: CGRect) {
        super.init(frame: frame)

    setupUI()
    }

   required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    //旋转图标动画(只有首页需要)
    @objc func startAnimation(){
        let anim = CABasicAnimation(keyPath: "transform.rotation")

        anim.toValue = 2 * M_PI
        anim.repeatCount = MAXFLOAT
        anim.duration = 2

        //动画完成不不删除 如果icon被释放,动画会一起删除
        anim.isRemovedOnCompletion = false

        //将动画添加到图层
        iconView.layer.add(anim, forKey: nil)
    }

    //MARK :-私有控件(不公开)
    //懒加载属性只有调用UIKit 空间指定构造函数,其他都需要使用类型
    //图像视图
    @objc lazy var iconView:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))

    //遮罩视图-不要使用maskView,会重名
    @objc lazy var maskIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    //小房子
    @objc lazy var houseIconView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))

    //提示标签
    @objc lazy var tipLabel:UILabel = UILabel.cz_label(
        withText: "关注一些人,回这里看看有什么惊喜    关注一些人,回这里看看有什么惊喜",
        fontSize: 14,
        color: UIColor.darkGray)


    
}

//MARK:-设置界面
extension WBVisitorView{

    func setupUI() -> () {
        //0.在开发的时候,如果能够使用颜色,就不要使用图像
        backgroundColor = UIColor.cz_color(withHex: 0xEDEDED)

        //1.添加空间
        addSubview(iconView)
        addSubview(maskIconView)
        addSubview(houseIconView)
        addSubview(tipLabel)
        addSubview(registerButton)
        addSubview(loginButton)

        //文本居中
        tipLabel.textAlignment = .center

        //2.取消autoresizing
        for v in subviews {
            v.translatesAutoresizingMaskIntoConstraints = false
        }

        //3.自动布局
        let margin: CGFloat = 20.0


        //1>图像视图
        addConstraint(NSLayoutConstraint(
                                        item: iconView,
                                        attribute: .centerX,
                                        relatedBy: .equal,
                                        toItem: self,
                                        attribute: .centerX,
                                        multiplier: 1.0,
                                        constant: 0))


        addConstraint(NSLayoutConstraint(
                                        item: iconView,
                                        attribute: .centerY,
                                        relatedBy: .equal,
                                        toItem: self,
                                        attribute: .centerY,
                                        multiplier: 1.0,
                                        constant: 0))
        //2>小房子
        addConstraint(NSLayoutConstraint(
            item: houseIconView,
            attribute: .centerX,
            relatedBy: .equal,
            toItem: self,
            attribute: .centerX,
            multiplier: 1.0,
            constant: 0))


        addConstraint(NSLayoutConstraint(
            item: houseIconView,
            attribute: .centerY,
            relatedBy: .equal,
            toItem: self,
            attribute: .centerY,
            multiplier: 1.0,
            constant: 0))

        //3>提示标签
        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .centerX,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .centerX,
                                         multiplier: 1.0,
                                         constant: 0))

        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .centerY,
                                         relatedBy: .equal,
                                         toItem: iconView,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))

        addConstraint(NSLayoutConstraint(item: tipLabel,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 238))

        //4>注册按钮
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .left,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .left,
                                         multiplier: 1.0,
                                         constant: 0))

        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: registerButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))
        //5>登录按钮
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .right,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .right,
                                         multiplier: 1.0,
                                         constant: 0))

        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .top,
                                         relatedBy: .equal,
                                         toItem: tipLabel,
                                         attribute: .bottom,
                                         multiplier: 1.0,
                                         constant: margin))
        addConstraint(NSLayoutConstraint(item: loginButton,
                                         attribute: .width,
                                         relatedBy: .equal,
                                         toItem: nil,
                                         attribute: .notAnAttribute,
                                         multiplier: 1.0,
                                         constant: 100))

        //6>遮罩图像
        //view:定义VFL中的控件名称和实际名称映射关系
        //metrics:定义 VFL 中() 指定常数映射关系
        let viewDict:Any! = ["maskIconView":maskIconView,"registerButton":registerButton]
        let metrics = ["spacing":10]
        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "H:|-0-[maskIconView]-0-|",
            options: [],
            metrics: nil,
            views: viewDict as! [String : Any]))

        addConstraints(NSLayoutConstraint.constraints(
            withVisualFormat: "V:|-0-[maskIconView]-(spacing)-[registerButton]",
            options: [],
            metrics: metrics,
            views: viewDict as! [String : Any]))
    }
}
